From: Hirokazu Takahashi <taka@valinux.co.jp>
Date: Wed, 24 Apr 2013 01:42:44 +0000 (+1000)
Subject: md: raid1/raid10 md devices leak memory when stopping
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=0fea7ed82b1edf384735a2b535368f54a8584c3a;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git

md: raid1/raid10 md devices leak memory when stopping

Hi.

Raid1 and raid10 devices leak memory every time they stop.
This is a patch for linux-3.9.0-rc7 to fix this problem.

Thanks,
Hirokazu Takahashi.

Signed-off-by: Hirokazu Takahashi <taka@valinux.co.jp>
Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index fd86b372692d..c055b92d7eb5 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2901,6 +2901,7 @@ static int stop(struct mddev *mddev)
 	if (conf->r1bio_pool)
 		mempool_destroy(conf->r1bio_pool);
 	kfree(conf->mirrors);
+	safe_put_page(conf->tmppage);
 	kfree(conf->poolinfo);
 	kfree(conf);
 	mddev->private = NULL;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 2372926dc559..c35d912a7f9b 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -3826,6 +3826,7 @@ static int stop(struct mddev *mddev)
 
 	if (conf->r10bio_pool)
 		mempool_destroy(conf->r10bio_pool);
+	safe_put_page(conf->tmppage);
 	kfree(conf->mirrors);
 	kfree(conf);
 	mddev->private = NULL;